Question

Cuscuta, Viscum and Orobanche are similar in having

• A. Hygroscopic roots
• B. Assimilatory roots
• C. Epiphyllous roots
• D. Haustorial roots

Answer 1

The correct option is D Haustorial roots

• Hygroscopic roots are those roots that absorb moisture from the atmosphere with the help of specialized tissue called velamen.
• Example includes Venda, Dendrobium, Ficus bengalensis. It is also called as epiphyllous roots.
• Assimilatory roots are also called as photosynthetic roots.
• Examples include Trapa, Tinospora. Haustorial roots are also called as parasitic roots.
• They depend on other plants partially or completely for food. Examples include Viscum Cuscuta, Orobanche.

Thus, the correct answer is 'Haustorial roots.'